Daniel gibbons



D, GIBBONS. NUT LOCK- (NO Model.)

' No. 558,799I

d Je i ArnNT OFFICE.

'DANIEL GIBBON S, OF WEST TROY, NEW YORK, ASSIGNOR OF ONE-HALF TO JAMESFORSYTII, OF SAME PLACE.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent No. 558,799, dated April21, 1896. Application filed October 8, 1895. Serial No. 565,006. (Nomodel.)

To all whom it may concern:

Be it known that I, DANIEL GIBBoNs, of West Troy, in the county ofAlbany and State of New York, have invented certain new and usefulImprovements in Nut-Locks; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention contemplates certain new and useful improvements innut-locks, being specially designed for use in connection withrail-joint iish-plates.

The object of the invention is to produce a simple-and efficient lockingdevice for the nuts on the locking-bolts of a fish-plate, which lockingdevice can be readily and easily placed in position and will effectivelyprevent the turning of said nuts under any circumstances.

A further object is to provide a locking device for said nuts which canbe quickly removed in the event of the breaking of one of thesecuring-bolts of the fish-plate, whereby the injured bolt can bequickly replaced.

The invention will be hereinafter fully set forth,l and particularlypointed out in the claim.

In the accompanying drawings, Figure l is a view in side elevationillustrating my improved nut-lock. Fig. 2 is a horizontal sectional viewon the line a: m, Fig. 1. Fig. 3 is a transverse sectional view on theline y y, Fig. l. Fig. 4 is a detail perspective view of thelocking-plates.

Referring to the drawings, A A designate two rails, the meeting ends ofwhich are designed to be united by fish-plates d a', the webs of saidrails being provided, as customary, with holes or openings through whichand coincident holes or openings in said fishplates are passed thelocking-bolts c2. These bolts are provided with threaded ends a3, onwhich work nuts a4, adapted to bear against the outer face of fish-plated', the heads of said bolts bearing against the outer face of theopposite fish-plate. In the ends of the iish-plate are formed recessesco5, which extend inward a short distance.

B B designate the locking-plates, each of which is provided with holesor openings b, equal in number to and corresponding in shape with thesecuring-nuts a4. Each of the locking-plates is provided with a shoulderb at its outer end, said shoulders being adapted to it around the endsof the fish-plate a'. From each shoulder h projects a hook h3, whichextends on a line with the inner face of each plate. These hooks aredesignedV to extend over the ends of the fish-plate and fit snugly inthe correspondingly-shaped recesses co5 in the ends of said iish-plate.

The locking-plates B B are each provided on their inner faces withtransverse ribs O, which rest against the fish-plate, so that saidlocking-plates do not comein contact with said fish-plate, but engagethe nuts at about their centers. The plate B is provided with an offsetd, having a projecting lug or ear d, which extends through a hole oropening of plate B', and through ahole or opening therein is inserted aspring locking-key D.

In practice the hooked ends of the lockingplates are iirst caused toengage the ends of the sh-plate, and after the plate B is positioned theother plate Bis closed down, so that their inner ends will overlap andthe lug or ear of the former will project through the hole of thelatter. The key is then inserted and the two parts locked together.

The advantages of my invention are apparent to those skilled in the artto which it appertains.

It will be seen that I have produced a simf ple and inexpensive lockingdevice which can be quickly and readily applied or placed in positionand which will serve as an efficient lock when so positioned.

I claim as my invention- The combination with the sh-plate havingrecesses in its ends, and nutted bolts, of lockingnplates having hooksat their outer ends for iitting in said recesses and having openings toaccommodate said nuts, said plates at their inner ends overlapping andprovided one with a lug or ear, and the other with a hole for said lugor ear, a locking-key in said ear or lug, and a series of transverseribs on the inner faces of said plates between said openings,substantially as set forth.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

DANIEL GIBBONS.

Vitnesses:

CHARLES T. MOORE, ABRAM HILTON.

IOO

